Square and miter device.



1.' Toon/s @LDH/wr. lSQUARE-AND IVHTER DEVICE.

APPLICATlON FILED MAY 23, 1917` LTUAM, Patented June' 25, 1913. 2 SHEETSAHEET x.

1. Toon/IHM. OLDHAM. SQUARE AND IVIITEH DEVICE.

APPLICATION `FILED MAY 23| 1917.

Patented June 25, 1918.

2 SHEEs-SHEET 2.

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` JOHN TUMEY AND JOSEPH OLDHAIVI, OF NORTH ADAMS, MASSACHUSETTS.

SQUARE AND MI'rEn DEVICE. l

reventa.

Specification of Letters Patent. Pwbgniljd Jun@ 25, 1918 Application filed May 23, 1917. Serial No. 170,480.

To all whom t may concern:

Be it known that we, JOHN TooMEY and JOSEPH OLDHAM, citizens of the United States, residing at North Adams, in the county of Berkshire and State of Massachusetts, have invented certain new and useful Improvements in Square and Miter Devices, of which the following is a specification.

This invention has to do with carpentry implements and is in the nature of a combination device embodying two of the tools most generally used by carpenters. The invention consists of a combination square, comprising a try-square and a foot-rule, and means for holding the latter on the trysquare so as to enable the implement to be used either as a square or bevel for mitering and other purposes, or as an extension to obtain a straight-edge prolongation of a leg of the square.

The objects and advantages of this invention are obtained by the combination and arrangement of parts as hereinafter more fully described, claimed and illustrated in the accompanying drawings, wherein:

Figure l is a plan view of the try-square element of this device;

Fig. 2 is an edge view of the same, showing more clearly the clamping flange;

Fig. 3 is an end view of the square;

Fig. 4 is a plan view showing the application of the foot-rule element to the square to produce an extension of the leg of the square;

Fig. 5 is an end View of the implement as shown in Fig. 4; and

Fig. 6 is a plan view showing the rule clamped in a position to permit the movable section of the rule to cooperate with a leg Of the square for beveling purposes.

Specifically describing the invention and referring to the drawings, it will be observed that the device comprises two main elements, namely, the try-square l and the footrule 2, both of which are conventional in formation, excepting only that the shorter of the legs of the square is provided at one edge with a flange 3 and a clamping niember in the form of a cam lever 4 pivotally attached to the leg in spaced relation to the flange aforesaid.

We preferably employ for our purposes a two-foot rule embodying pivoted sections,

such being essential to fully carry out the objects of this invention.

Referring to Figs. 4 and 6, respectively, the two main uses of this combination implement will be noted, .the first of said figures disclosing the extension function and the second its arrangement for constituting a bevel, as employed in marking studding for hip roof construction, or for mitering, etc.

The shorter of the legs of the square is preferably constructed to be of the same width as the two legs of the foot rule when placed side by side, as in Fig. 4 and the lever 4 is so mounted on this leg as to enable the disposition of one of the rule legs between it and the flange 3, whereupon swinging of the lever around on its pivot will clamp the rule against the flange and firmly hold this rule in place. The lever is purposely made thin so that the other leg of the rule will lie upon the saine, as shown in Fig. 5, the outer edge of the rule being flush with the outer edge of the square. The shorter of the legs of the square when the rule is thus attached is prolonged and the implement is particularly useful in stair building as thus arranged.

`Releasing and turning the rule from the position shown in Fig. 4 to that of Fig. 5 and again clamping said rule, the free leg thereof may now be swung in a direction longitudinal of the longer of the legs of the square so as to obtain the proper angle from the plane of the other leg of the square. This longer leg of the square is suitably graduated, as indicated at 5 so as to provide a guide for the workman in securing the desired angle.

The uses of this simple invention will readily appear to those yacquainted with carpentry and the fact that the implement is made up of two of the tools which form a part of the necessary equipment is espeA cially advantageous, as they are capable of either conjoint or separate and independent use.

Having thus described our invention, what we claim as new is A combination tool of the class `described consisting of a body member having arms arranged at an angle to each other, a second member adapted to be attached to one of said arms to provide an extension therefor, said second member consisting of a and clamping means on said first mentioned relatively stationary section and a freely body member arm for holding the extension l0 movable section arranged for cooperation member in place thereupon.

With the other of vseid arms of the body In testimony whereof We aHX our signumelnber for determining the angle with retures.

speot thereto, said other body member arm being provided with graduatons with JOHN TOOMEY. which the freely movable section cooperates, JOSEPH OLDHAM.

y Copies of this patent may be obtained for ve cents each, by addressing the Commissioner ot Patents.

Washington, D. C. 

